Abstract

EMMA is the world's first non-scal­ing fixed field al­ter­nat­ing gra­di­ent ac­cel­er­a­tor and is being con­struct­ed at the STFC Dares­bury Lab­o­ra­to­ry. Ex­pe­ri­ence from the ini­tial com­mis­sion­ing phas­es (from early 2010) will be re­port­ed and lessons for fu­ture ma­chines of a sim­i­lar type will be dis­cussed. The pre­sent ex­per­i­men­tal sta­tus and fu­ture plans will also be re­port­ed.